germanium-doped silica core single mode fiber

例句：

1. 1. The new fiber optic cables are more efficient and have a longer lifespan than traditional ones.
   新型光纤电缆更加高效，使用寿命更长。
2. 2. The company's research team has developed a new germanium-doped silica core single mode fiber that can transmit data at high speeds.
   该公司的研究团队开发了一种新的掺锗硅芯单模光纤，可以在高速传输数据。
3. 3. The fiber optic cable is widely used in communication systems, providing reliable transmission of signals.
   这种光纤光缆在通信系统中广泛使用，可以可靠地传输信号。